Less than a week after a school shooting in Connecticut left 20 small children dead, a stream of cars flowed in and out of the parking lot of a Minden sail factory.People had taken time out of their regular day to make the drive on Dec. 20, to park their vehicles, and to walk into the front office of North Sails. On the counter were pink balloons and a box. Those who came left what they could. Pocket change. Hand-written checks. In one instance, $500."I wasn't shocked by the response," said North Sails Master Scheduler Jeff Holden. "I knew everybody …